Q2) A single block brake is shown in Fig.The diameter of the drum is 250 mm and the angle of contact is 90°. If the operating force of 700 N is applied at the end of a lever and the coefficient of friction between the drum and the lining is 0.35, determine the torque that may be transmitted by the block brake

Q2) A single block brake is shown in Fig.The diameter of the drum is 250 mm and the angle of contact is 90°. If the operating force of 700 N is applied at the end of a lever and the coefficient of friction between the drum and the lining is 0.35, determine the torque that may be transmitted by the block brake

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

The band of a brake has a contact angle of 18° deg. If the pulls on the bands are 275 kg and 100 kg, find the coefficient of friction.
The band brake of Fig. is used to control the rotation of a drum. The coefficient of friction between the belt and the 36° V-pulley is 0.15, and the weight of the han- dle is 15 N. If a force of 200 N is aPplied to the end of the handle, determine the maximum torque for which no mo- tion occurs if the torque is applied Counterclockwise. 150 mm T 200 N 60 150 mmi 675 mm 75 mm
Q2) A differential band brake shown below transmits a torque of 450N.m. The coefficient of friction is N/0.28. The diameter of the druff of 400mm. its tensile yield strength is 50N/mm. the tensile yield strength of the lever is 58N/mm² and its width is the 1/3rd of its height, the allowable shear stress of the pin is 32N/mm². Determine: N (4-4099 T₂= N (a-899 ii. Hi. P= b 3099 b-309 b- 15.86 e- 3900 c- 300 c- 16.58 d. 1200) d-849) d-11.55) N (a-18.56 c- 6 iv. The thickness of the band t=. d-3) e-31 d-13) v. The width of the band w... vi. The thikness of the lever h d-30) d-25) vii. The width of the lever w=....... viii. The diameter of the pin d= ...... d- 18) mm (a- 2 mm (a- 23 .mm (a-20 mm (a- 10 mm (a- 12 <2² ه آعی b-5 b- 35 b- 30 b-15 b- 14 25 400 c-10 c-20 c-16 مع
Given problem: Determine the maximum force 'P' that can be applied without causing movement of the 248.8 lb crate which has a center of gravity at point 'G' . The coefficient of static friction at the floor is ?? = 0.4. a) Determine the maximum force ‘P’ that can be applied against sliding in lb. b) Determine the maximum force ‘P’ that can be applied against tipping in lb. c) Determine the safest maximum force ‘P’ that can be applied without causing movement in lb.
A car has hydraulically operated disc brakes at the front and drum brakes at the rear. The frontbrakes have pistons of 58 mm diameter each, whereas each of the wheel cylinder at the rearbrake has 28 mm diameter. The master cylinder piston has diameter of 40 mm. The brake footpedal has a leverage of 4. If the brake pedal is applied a force of 100 N, Calculate (i) The brakingforce on the front axle, (ii) The braking force on the rear axle.
Find the value of frition if coefficient of friction is 0.3 and normal force is 200 N
Show full and complete solution
5. There is a small amount of friction in the bearings of the pulley wheel. Suggest a way to measure this friction force (in grams).
A pulley with a diameter of 4 in. can rotate about a fixed shaft with a diameter of 2 in. The coefficient of static friction between the pulley and shaft is 0.20. Determine; a. the smallest vertical force P required to start raising a 500-lb load. b. thesmallest vertical force P required to hold the load. c. the smallest horizontal force P required to start raising the same load.
Do in 2 min